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Due to the incremental demands for electrical energy, Distributed Generator (DG) sources are prominent in distribution systems. At the same time, the Locations and Capacities of DG sources have profoundly influenced the system losses in a distribution network. In this paper, a Hybrid algorithmusing Power Loss Index (PLI) & Genetic Algorithm (GA) presented for optimized Location and sizing of DG...
In deregulated power system, assessment and analysis of wheeling prices become a challenging task. In Indian power sector various network users are based on a regional postage stamp method for wheeling prices. But due to changed scenario, postage stamp method does not satisfy Indian electricity policy. It is because of non linear power flow plays an important role to decide wheeling prices across...
Providing high security and reliability for a power system is compulsory for a transmission service provider (TRANSCO) as this will affect the performance in terms of stability and economy. This can only be achieved by means of ancillary services like reactive power provision. However, to cover the cost of supplying such services, determination of appropriate methods for allocating the cost to consumers...
A transmission loss minimum re-scheduling method by genetic algorithm and modified shuffled frog leaping algorithm are proposed. The problem is a complex mixed integer programming problem. A genetic algorithm (GA) is a search or optimization algorithm based on the mechanics of natural selection and natural genetics where modified shuffled frog-leaping algorithm (MSFLA), which is an improved version...
This paper studies the planning issue of distributed generators at different locations. The multi-objective function is normalized to form a minimized optimal function on distribution network cost, when the capacities and the number of distributed generators and the demands at various locations are known. Optimizing placement of distributed generators by applying electromagnetism-like mechanism, the...
This paper proposes a systematic method for reactive loss optimization using Genetic Algorithm (GA) and load flow analysis for deregulated transmission systems. Due to nonlinear nature of power flow, tracing the loss and power flow through the mesh network becomes more complicated. In this paper, in genetic algorithm, the loss optimization using equivalent optimal power flow model has been treated...
In the open access restructured power market, it is necessary to develop an appropriate pricing scheme that can provide the useful economic information to market participants, such as generation, transmission companies and customers. The present work addresses the problem of allocating the cost of the transmission network to generators and demands using a real coded Genetic Algorithm(GA). To redistribute...
Transmission loss and load flow allocations become important issues under deregulation system. Due to nonlinear nature of power flow, tracing the loss and power flow through the mesh network becomes more complicated. Since the complexity of electricity transmission system, it is not straightforward to determine the contribution of particular generator to a particular line loss and/ or load. This paper...
The Optimal sizing and placement of distributed generators has received considerable attention from researchers recently. This paper presents an extensive review of the different solution methods found in the literature and is intended as a guide for those interested in the problem or intending to do additional research in the area. The assumptions made and a brief description of the solution methods...
The optimal allocation of emergency power supplies should consider the distribution of existing distributed generators, capacity of existing emergency power suppliers in each local district utility and important customers' needs for emergency power supplies. Based on the relationship between power supply reliability and economy, the optimum model of emergency power supplies has been proposed in this...
Deregulation in power industry has made the reactive power ancillary service management a critical task to power system operators from both technical and economic perspectives. Reactive power management in power systems is a complex combinatorial optimization problem involving nonlinear functions with multiple local minima and nonlinear constraints. This paper proposes a practical market-based reactive...
The present work focuses on the allocation of the active power transmission losses among the buses of a power system operating under pool condition. Two types of approaches, based on the principle of equivalent bilateral Exchanges (EBEs) and the network Z-bus matrix are presented and compared with each other. In the case of network congestions, a GA framework is suggested to deal with the optimal...
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